GrassBase - The Online World Grass Flora

Descriptions

W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Lagurus

HABIT Annual. Culms erect, or geniculately ascending; 5–60 cm long. Ligule an eciliate membrane. Leaf-blades linear, or lanceolate.

INFLORESCENCE Inflorescence a panicle.

Panicle capitate.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 8–10 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.

GLUMES Glumes persistent; exceeding apex of florets. Lower glume lanceolate; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface without pits; villous. Lower glume apex setaceously attenuate. Upper glume lanceolate; 2 length of adjacent fertile lemma; membranous; without keels; 1 -veined. Upper glume surface villous. Upper glume apex setaceously attenuate.

FLORETS Fertile lemma elliptic; scarious; without keel; wingless; 5 -veined. Lemma surface unwrinkled; without grooves; pubescent. Lemma apex dentate; 2 -fid; awned; 3 -awned. Principal lemma awn dorsal; geniculate. Lateral lemma awns shorter than principal. Palea 0.75 length of lemma.

FLOWER Anthers 3.

FRUIT Caryopsis with adherent pericarp; fusiform. Embryo 0.15–0.2 length of caryopsis. Hilum punctiform.

DISTRIBUTION Europe, or Africa, or Temperate Asia, or Tropical Asia, or Australasia, or North America, or South America.

Please cite this publication as detailed in How to Cite Version: 27th January 2014.